Corrugated plate with integral post



' June 17, 1930.

G. G. GILPIN CORRUGATED PLATE WITH INTEGRAL POST Filed Sept. 24, 1928 2 SheatsSheet 1 Ezvenfor:

Hliornea June 17, 1930.

G. G. GILPIN CORRUGATED PLATE WITH INTEGRAL P051 2 Shee ts-Sheet 2 Filed Sept. 24, 1928 fnvenior: Geri/1 1 11 Patented-June 17, 1930 UNITED STATES PATENT OFFICE GARTH G. GILPIN, OF RIVERSIDE, ILLINOIS, ASSIGNOR TO UNION METAL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE CORRUGATED PLATE WITH INTEGRAL POST Application filed September 24, 1928. SerialNb. 308,104.

The invention relates to railway freight train cars and more particularly to corrugated plates with integral posts therefor having an integral strut-beam adjacent one or 5 both side margins of a metallic plate, and the object of the invention is to reinforce such a strut-beam adjacent its middle portion which is its place of maximum bending moment under columnar or beam stresses. 7

Such a construction when used in house or roofed cars (such as box, automobile, stock, etc.,) would eliminate the use of corner post or door post, or if the strut-beam is positioned horizontally, would eliminate the use of the 15 end plate or end sill. lVhen used in open top cars (gondolas) the corner post could be dispensed with.

Another object of the invention is to form a wall of a railway car of two plates'secured 20 together along a horizontal lineand to form an integral post adjacent each vertical margin hereof and to reinforce the connection between the two plates at each corner post.

In the drawings:

Fig. 1 shows a railway box car equipped with a typical application of my device.

Fig. 2 is a side elevation of Fig. 1.

Fig. 3 is a section on line 3-3 of Fig. 1.

Fig. 4 is a perspective view of a metallic plate wall having an integral corner post formed according to my invention.

plate.

The drawings show my invention applied 3-5 to a railway box car wherein the metallic plate 1 forming the end wall of the car is provided with an integral Z shape memberadjacent each of its opposite vertical margins, which members are secured to the upper side plates v:2 and lower side sills 3, respectively, on each side of the car, thus forming the usual corner post, that is, the integral 2 shape formation or members perform the functions of the usual corner post of the car. (This construction is disclosed and claimed in my co-pending applicationSerial No. 308,102, filed September 24, 1928.) Each Z shape member comprises a web 4, an outer flange 5 and inner flange 6. Such a Z shape member construction provides a very strong column to resist stresseslongitudinally of its length and furthermore such a Z shape construction forms a very eflicient beam to resist stresses nor- "mal to its length. This statement is true where the stresses are parallel to the web 4 normal to the web or diagonal thereto, there- 'fore, such a Z formation forms a very effidescribed.

A great many car ends now in service have an upper and lower metallic plate secured together along horizontal lines having integral horizontalcorrugations in each sheet. Such sheets are secured along their vertical edges tothe corner post of the' car which extend continuously from sill to plate of the car. In forming a plurality of parallel corrugations 10 in a metallic sheet and terminating'them within the margins of the sheet, as at 11, the

. plate is drawn in adj acent itsmiddle portion,

as shown in Fig. 4, andit is-customaryto shear them along lines.1212 and I3-13. Two of such plates are-then secured together by a lap joint and a single row-of rivets 14:. Fig. 5 is an unsheared corrugated metallic When aninteg'ral corner post is formed in such, a construction a weakplace is formed where thetwo plates are secured'together because a riveted connection is not as strong, as

the other portionsof the integral corner post, therefore,.in my construction I shearthecorrugated plates only along lines .13-. 13 so that when-the. two plates are placed together, s

the overlapping relation of the websand the outerrflangesl and preferably also the inner flanges) is greater than elsewhere, thus giving a greater bearing area. between the at- :tached plates at the integral corner post than elsewhere and providing better meansfof securing. the plates together thaxrhas heretofore been used. Furthermore,this'increasedoverlapping relation between the plates reinforces the integral post at its midle portion which is a cured together by a lap joint, said wall having an integral Z shaped member formed at one vertical margin thereof having each end secured to one of said framing elements, said member comprising a web and an outer flange, the overlapping relation of the webs and the outer flanges being greater than elsewhere, and means to secure said webs and outer flanges together. w

2. In a railway car; the combination ofoppositely disposed framing elements, a metallic wall comprising two metallic plates secured together by a lap joint, said wall having an integral 2 shaped member formed at one vertical margin thereof having each end secured to one of said framing elements, said member comprising a web, an inner flange and an outer flange, the overlapping relation of the webs and the inner flanges and the outer flanges being greater than elsewhere, and means to secure said webs, inner flanges and outer flanges together, 7

3. In a railway ear; thecombination of oppositely disposed framing elements, a metallic wall comprising two metallic plates secured together by a lap jointalong a horizontal line, said wall having an integral Z shaped member formed at one vertical margin thereof having each end secured to one of said framing elements, said member comprislng a web andan outer flange, the overlapping relation of the webs and the outer flanges being greater than elsewhere, means to secure said webs andouter flanges together, and horizontally disposedcorrugations formed in the plates and terminating therein adjacent said member.

4. In a railway car, the combination of op- 'positelyfdisposed framing elements, a metallic wall comprising two metallid'plates secured together by a'lap joint, said wall having an integral Z shaped member formed at 'one'vertical margin thereof having each end secured to one of said framing elements, the

overlaping relation of said member being greater than elsewhere.

5.- In a railway-car,thecombination of oppositely disposed framingelements, a .metallic wall comprising twometallic .plates secured together by a'lap j oint,said wall having anintegral Z shaped member formed at one overlapping relation of said member and a portion of the end wall adjacent said member being greater than elsewhere.

GARTH G. GILPIN. 

